Improvement in machines for making inlaid work



2 Sheets-Sheet 1.

E. JEBSEN. Machines for making Inlaid Work.

No. 196,9 Patentglp/Y.. 6,1877.

L v IlV wat l 'tnefasex A `lmnim' M 152g MKM? $1 ww N. PETERS. PHOTO-LITHJGRAPMER. WASHINGTON. n. C.

2 Sheets-Sheet 2. E. JEBSEN.

Machines for making Inlaid Work.

No. 196,906 M'Ptented Nov. 6,1877.

N.PETERs, FHOTD-LITHDGRAPME. WASHINGTON. D C.

` I ERNST JEBSEN, OF CHICAGO, ILLINOIS.

IMPROVEMENT IN MACHINES FOR MAKING INI AID WORK.

Speciiication forming part of Letters Patent No. 196,906, dated November 6, 1877 application filed July 2, 1877.

Illinois, have 'invented a new and Improved Machine for Making Inlaid Work, as fully set forth in the following specification, reference I beingA had to the accompanying drawings, in

Figure 1 is a perspective view of the machine. Fig. 2 is a plan of the die-plate.- Fig. 3 is a section on line x x in Fig. 2. Fig. dis a section on line y y in Fig. 2. Fig. 5 is a section on line z z in Fig. 2, and Fig. 6` is a plan of the device for connecting the several sections 'of the die-plate. Figa-7r is a cross-section of the whole machine. Figs. 8, 9, 10, and l1 are detached and sectional views of the punch-plates and their adjusting devices 5 andFig. l2 isa sectional plan of one of the punch-heads complete.

My inventionrelates to a machine by which veneers of different colors or shades are punched and the blanks thus obtained are transplaced from one veneer to another, all of which is performed at one operation.

My invention consists of a stationary dieplate composed of several sections, so as to conform' with the design or configuration to be inlaid, and of two sets of punches shaped to correspond withthe die-plate, and arranged one below. and the/other above said die-plate, having an alternate reciprocating motion, andoperating in such a manner that the blank punched out of the veneer, inserted upon the top of the die-plate, is transplaced into the aperture already cut through the veneer, inserted against the bottom of said die-plate, and Vice versa, so thata single motion of the punches in eitherdirection will complete a sheet or plate of inlaid work.

A is the frame of"theA machine, consisting of the two end sections a, of the longitudinal connecting-bars al, and of the guide-bars a2 for the punch-heads. The end sections a have l jenna-boxes for the driving-shafts Band B'.

C is the die-plate, which is rigidly secured to and between thetwo end frames a, horizontally, and in a position half-way between the two driving-shafts B and B.

The die-plate C is composed of several sections, c c, in conformity with the configuration to be produced, theshapes to be punched being cut open in said sectional plates. These sections are joined to each other by dowelpins and by screw-bolts D, having nuts d, the heads of said bolts D, as well as the nuts, being circular, with a bead-shaped swell rim seated into conforming sockets sunk half into each of the joining sections, as shown in Figs. 5 and 6. I X

The side edges of said die-plate rest in two grooved bars, E, which are adjustably secured. upon two bars, F, bolted horizontally to the inside of the end frames a. The adjustment of the bars E transversely is accomplished ,by screws c, one at each end of each bar E, each pivoted betweenv two brackets', e', of bars F, Vand passed through a screw-threaded hole in bar E. Angular brackets, f, which are bolted to the ends of bars E, and which have a slotted hole for a bolt tapped into the ends of bar F, are intended for'additionally securing the bars toge'ther after adjustment. j

Set-screws G, two for each end, move in tapped lugs, g,whieh are bolted to the top of bars F, and are intended for adjusting and holding the die-plate longitudinally.

The punch-'heads H and Hare exactly alike, except that they are placed in reversed positions. Said heads are fitted to the guide-'bars a2 of the frame, and have central stemsh and h vertically projecting from the heads, which," for additional guides, slide in holes through Two rollers, i', are pivoted to one side of the extreme end of each of said' stems h i, between which a `sidewiseprojecting endless ange of cams I I moves, being so shaped that they will give one intermittent reciprocating inotion to the punch-heads during each revolution.

Said cams I and I are secured upon the central portion of the shafts B and B', which have cranks b and b on their ends, the two cranks on each shaft being placed perpendicular to each other.

The crank-pins of the 'shafts B and B7 are Prion.

coupled by vertical connecting-rods K, thereby transmitting a uniform rotary motion fromone shaftto the other.

The camsI and I areplaced upon the shaftsB and B' in such relation to each other that the punch-heads will alternately come into contact with the dieplate.

The punch-heads H and H are each provided with aK series of transverse T- shaped grooves, Z, into which" the heads ofthe bolts L are inserted for securing the punch-sections thereto.

The punches M project from plates which are made in sections similar to the die-plate, and are joined with each other by small feathers m, and held in place by two grooved side bars, N, grasping the edges vof the punchplate, which are adjusted transversely each by two screws, u, pivoted between lugsa, projecting from the punch-head H, and passed through screw-threaded holes in the ends of bars N.

The bolts L are not tightened until the punches are properly adjusted so` as to, match with the die-plate C;

Each ofthe punch-heads Hand H' is also provided with two rows of oblong slots, O, being centrally 4in line with the 'lf-shaped grooves l. `Tubes P are inserted into` these slots, which have bottom flanges shouldering with the T-shaped grooves,'and are secured by nuts p' after being transx-'ersely adjusted to their required position.

A plate, Q, is attached to each set of punches, having openings the same as the die-plate C, so. as to allow the punches to pass through. A series of studs, q, are secured toits edges, which are passed throughthe tubes P, and are lockedtherein by nuts on their ends. A spiral spring, 1', surrounds each of these studs g, the ends of which bear against the tube P and plate Q, so as to yield while the punches enter thefdies, and to force the plates Q toward thel face of the punches on their return stroke.

Themodus operand/a' of my above-described machine is as follows: If inlaid work` of two diderent shades or color of wood is to vbe made-say, of mahogany and white woodthe veneers are all first Vcut to the right size, after which I place a mahogany veneer upon `the die-plate C, which will be cut by theup per punches, and the blanks thus` cut I re'- move. Now, `by placing a Whitefwood veneer below the die-plate, the lower punches will cut out the blanks, `,will vpush the same through the die-plate, and will transplant them in to the` apertures of the mahogany veneer above, which, now being finished, is removed Vand replaced by another mahogany veneer to be punched, and the lblanks to be carried through the dies again and pressed into the apertures of the white-wood veneer, which is now removed and replaced, so that continuously each revolution of the machine will complete two inlaid veneers of the same design in reversed colors.

The plates Q are `to push the veneers olf the punches on-their back stroke and to holdl the punched out veneer while the blanks are pressedV into their apertures.

If the springs 1' should not give sufficient resistance to the plates Q for holding the veneer solid until the inlaying is accomplished, which may be the case with some kinds of material to be used, said plates Q may be given a positive reciprocating-motion by means of a series of separate cams secured upon the ends of shafts B and B.

The motion imparted to the ypunches -Mby the cams I and I is to be such that the upper punches will enter the die-plate until their faces are flush with the lower face of the die-plate, A n when the lower punches Will move up until the veneer is grasped between the faces of the two sets of punches, and ngo-w, while the upper punches make their return Inevement,` the lower punches will follow them so` closely that the punched blank is never released until transplaced into the aperture ofthe upper ve.- neer, which is pressed and held against the `top face of the die-,plate by plate Q,`and` vice,

versa.;

The plates Q should always travel` alittle vin advance of the punches toward the veneer.

to be cut, so as to hold the` same` solid while the punches gothrough, and should not ref lease the veneer until it is inlaid.

For more than two `colors or shades of ma? .n terial the veneers will-have to pass through" the same machine again after the dies and` punches have been changed, orlthe machine maybe constructed for two o1? `lllwle sets of dies and punches, through which the veneers are passed successively. After the veneers are thus inlaid, they may be iixed on paper," 'n which is cleaned olf againafter they are` ap plied toa piece of furniture. n

Heretofore veneers for inlayn g were mostly sawed out, by which operationthe blanksto be exchanged from one to` another were notof the required size to make all exactt with the apertures, the thickness of the,` saw-cut being lost, to be flled by glue or putty, While` by punching an accurate job isobtained, besides` the speed with which inlayin'g is accomplished. n My machine will be useful for making manV quetry, buhl-work, or tarsia for ornamentations n er-oflpearl, &c. l A

What I claim as` my invention rs1-q with choice woods,fm etal, ivory, leather, meth@ 1. In a machine for punchingblanks for in. i

laid Work, the combination of reciprocating` dies with stationary intermediate diefplate, where-- by the' blank is cut andtransplacedu One cip-.

eration, substantially as described.

2. In a machine for punching blanks for infA V laid work, the combination of reciprocating dies and stationary intermediate die-plate with spring-plates secured to and operating in Vance of the said dies, substantially as and for` the purposes set forth.

3. The die-plate C, composed of sections c placed between bars E, and adjustably seeating plates Q, and punches M, driven by cured upon bars F by screws e and Gr, and anshafts B and B', and cams I and I', all argular plates f, substantially as described and ranged Within a frame, A, substantially in the shown. manner described, and for the purpose speci- 4. The punch-heads H H', having stems h fied.

h and T-shaped grooves l, for adjustably securing the sectional punches M by means of l ERNST JEBSEN' bars N, bolts L, and set-screws n, substan- Witnesses: tially in th'e manner described and shown. WM. H. LoTz,

5. The stationary die-plate C, the recipro- C. F. GOLLogJ. 

